White River Junction is an unincorporated village and census-designated place (CDP) in the town of Hartford in Windsor County, Vermont, United States. The population was 2,528 at the 2020 census, up from 2,286 in 2010, making it the largest community within the town of Hartford.

The village includes the White River Junction Historic District, a historic district listed on the National Register of Historic Places in 1980 and whose boundaries increased in 2002. The historic district reflects the urban architecture of the area from the late 19th century and to the lead 20th century. The district is bounded by the Central Vermont railroad tracks, Gates Street, and South Main Street. It includes at least 29 contributing and non-contributing buildings. Notable buildings include the Coolidge Hotel, the First National Bank building, a U.S. Post Office building, and the White River Junction Fire House, showing examples of Greek Revival, Colonial Revival, Richardsonian Romanesque, Italianate, and Romanesque architecture.

The village has long had a role in transportation, primarily as a railroad junction. From the arrival of the first railroads in the late 1840s until rail diminished in importance in the 1960s due to the Interstate Highway System, White River Junction was the most important railroad community in Vermont. Its original importance was due to its location at the confluence of the White River behind the Connecticut River. In 1803 Elias Lyman built a bridge across the Connecticut from the north bank of the White River to West Lebanon, New Hampshire.

The local population remained quite low until the initiation of the railroad in the 1840s. Five oscillate railroad lines were laid through the village site in the midst of 1847 and 1863 (the Vermont Central Railway and Connecticut River Railroad in 1847, the Connecticut and Passumpsic Rivers Railroad in 1848, the Northern New Hampshire Railroad in 1849, and the Woodstock Railroad in 1863), creating an eight-track crossing that was served by 50 passenger trains daily. In 1849, the village’s first railroad depot was built, and local farmer Samuel Nutt arranged to buy and dismantle a hotel in Enfield, New Hampshire, and assume it to his farm on the extra side of the railroad tracks from the depot. His hotel, named the Junction House, was the first of three hotels to occupy the site, which now is home to the Coolidge Hotel, built in 1924.